The M-105, designed in 1940, drew heavily on Klimov's experience with the Hispano-Suiza 12Y (license-built as the M-100). In addition to a two-speed supercharger, the M-105 had several improvements like two intake valves per cylinder and a counterbalanced crankshaft. The M-105 was the first Klimov V-12 engine design to use reverse-flow cylinder heads, forcing the induction system to be placed on the outside of the cylinder banks, with the exhaust system also exiting from the outboard side, with twin sets of "siamesed" exhaust ports adjacent to each other. About 129,000 M-105 and its variants were built.
During the war, Klimov's engines were redesignated from "M" (for "motor," engine) to "VK" for the lead designer's initials.
VariantsEdit
M-105 - (1,100 horsepower (820 kW)) First version produced at the end of 1939. Installed on some pre-war fighters.
M-105P - (1,050 horsepower (780 kW)) First mass production engine (1940). Able to accept a motornaya pushka (моторная пушка - motor cannon)-mount autocannon in the "vee" between cylinder banks. Installed on the majority Soviet pre-war fighters - Yak-1, LaGG-1 and several experimental aircraft.
M-105PF (VK-105PF) - (1,260 horsepower (940 kW)) 1942 Modification with significantly increased power output at the expense of decreased high-altitude performance. In spite of Klimov's concerns about decreased service life, the engine was pressed into production at the insistence of Yakovlev, and further exploitation of "PF" version showed this was the right decision. The "PF" was installed on the most numerous versions of "Yak" fighters - Yak-1B, Yak-7B, Yak-9.
VK-105PF2 & PF3 - (1,300 to 1,360 horsepower (970 to 1,015 kW)) Further increase in power output, which was believed to have exhausted the potential of the M-105 design for greater performance. The "PF2" was installed in the Yak-3 and Yak-9U.
Valvetrain: Two intake valves and one sodium-filled exhaust valve per cylinder actuated via a single overhead camshaft per bank. Valve lift: 13 mm (intake and exhaust)
Supercharger: Gear-driven two-speed centrifugal type compressor. Gear ratios: 7.78:1 (1st speed) 11.0:1 (2nd speed). Maximum boost for take-off: 965 mm Hg (38.00 MP), subsequent variants had 1,100 or 1,200 mm Hg. Maximum boost at altitude: 920 mm Hg (36.22 MP), subsequent variants had 1,100 mm Hg. Emergency boost (maximum 2 minutes): 1,100 mm Hg (43.30 MP) at 2,800 RPM. Critical altitude: 2,000 m (6,561 ft) at 1st speed, 4,000 m (13,123 ft) at 2nd speed.
Fuel system: Six K-105 Carburettors (License copy of Solex-Hispano 56SVC self-adjusted carburettor), three on each "outboard" side of cylinder banks
^Valtion Lentokonetehdas (1943). Hispano-Suiza 12Y-31, M-103, M-105. Rakenneselostus, Käyttö – Ja Huoltoohjeet ["Valtion Lentokonetehdas" State Aircraft Factory: Hispano-Suiza 12Y-31, M-103, M-105. Use and Maintenance Instructions.] Helsinki: Maintenance and spare technical manual of the Finnish Government. The National Library of Finland.
^During the war, the Soviet Air Force used fuel mixtures, including automotive gasoline, without troubles.
BibliographyEdit
Gunston, Bill (1989). World Encyclopedia of Aero Engines. Cambridge, England: Patrick Stephens Limited. ISBN1-85260-163-9.
Wikimedia Commons has media related to Klimov M-105.
VK-105 on ram.home.com
August 27, 2023
klimov, liquid, cooled, piston, aircraft, engine, used, soviet, aircraft, during, world, 105a, 105pf, engine, central, force, museum, moscow, type, v12national, origin, soviet, unionmanufacturer, klimovfirst, 1938major, applications, lagg, petlyakov, yakovlev,. The Klimov M 105 was a V12 liquid cooled piston aircraft engine used by Soviet aircraft during World War II 1 M 105A VK 105PF engine in Central Air Force Museum Moscow Type V12National origin Soviet UnionManufacturer KlimovFirst run 1938Major applications LaGG 3 Petlyakov Pe 2 Yakovlev Yak 1 Yakovlev Yak 9 Yakovlev Yak 3Number built c 129 000Developed from Klimov M 103 Contents 1 Development 2 Variants 3 Applications 4 Specifications VK 105 4 1 General characteristics 4 2 Components 4 3 Performance 5 See also 6 References 6 1 Notes 6 2 Bibliography 7 External linksDevelopment EditThe M 105 designed in 1940 drew heavily on Klimov s experience with the Hispano Suiza 12Y license built as the M 100 In addition to a two speed supercharger the M 105 had several improvements like two intake valves per cylinder and a counterbalanced crankshaft The M 105 was the first Klimov V 12 engine design to use reverse flow cylinder heads forcing the induction system to be placed on the outside of the cylinder banks with the exhaust system also exiting from the outboard side with twin sets of siamesed exhaust ports adjacent to each other About 129 000 M 105 and its variants were built During the war Klimov s engines were redesignated from M for motor engine to VK for the lead designer s initials Variants EditM 105 1 100 horsepower 820 kW First version produced at the end of 1939 Installed on some pre war fighters M 105P 1 050 horsepower 780 kW First mass production engine 1940 Able to accept a motornaya pushka motornaya pushka motor cannon mount autocannon in the vee between cylinder banks Installed on the majority Soviet pre war fighters Yak 1 LaGG 1 and several experimental aircraft M 105PA 1 200 horsepower 890 kW Improved 1941 version M 105PF VK 105PF 1 260 horsepower 940 kW 1942 Modification with significantly increased power output at the expense of decreased high altitude performance In spite of Klimov s concerns about decreased service life the engine was pressed into production at the insistence of Yakovlev and further exploitation of PF version showed this was the right decision The PF was installed on the most numerous versions of Yak fighters Yak 1B Yak 7B Yak 9 VK 105PF2 amp PF3 1 300 to 1 360 horsepower 970 to 1 015 kW Further increase in power output which was believed to have exhausted the potential of the M 105 design for greater performance The PF2 was installed in the Yak 3 and Yak 9U M 105PD 1 170 horsepower 870 kW Engine with 2 stage E 100 turbocharger experimental high altitude version unsuccessful prototype M 105R 1 100 horsepower 820 kW Decreased propeller reduction gear ratio for bomber aircraft Installed on Pe 2 BB 22 Yak 4 and others M 105RA 1 110 horsepower 830 kW M 105PA with decreased propeller reduction gear ratio for bomber aircraft Applications EditP 39 Airacobra Arkhangelsky Ar 2 Ikarus S 49 P 40 Kittyhawk Lavochkin Gorbunov Goudkov LaGG 1 Lavochkin Gorbunov Goudkov LaGG 3 Morko Morane Petlyakov Pe 2 Petlyakov Pe 3 Yakovlev Yak 1 Yakovlev Yak 2 Yakovlev Yak 3 Yakovlev Yak 4 Yakovlev Yak 7 Yakovlev Yak 9 Yermolayev Yer 2Specifications VK 105 EditData from 2 General characteristics Type Twelve cylinder liquid cooled 60 V12 engine Bore 148mm 5 826 in Stroke 170mm 6 693 in Displacement 35 101 Liters 2 142 2 cu in Length 2 027 mm 79 8 in Width 777 mm 30 59 in Height 945 mm 37 20 in Dry weight 575 kg 1 266 lb Components Valvetrain Two intake valves and one sodium filled exhaust valve per cylinder actuated via a single overhead camshaft per bank Valve lift 13 mm intake and exhaust Supercharger Gear driven two speed centrifugal type compressor Gear ratios 7 78 1 1st speed 11 0 1 2nd speed Maximum boost for take off 965 mm Hg 38 00 MP subsequent variants had 1 100 or 1 200 mm Hg Maximum boost at altitude 920 mm Hg 36 22 MP subsequent variants had 1 100 mm Hg Emergency boost maximum 2 minutes 1 100 mm Hg 43 30 MP at 2 800 RPM Critical altitude 2 000 m 6 561 ft at 1st speed 4 000 m 13 123 ft at 2nd speed Fuel system Six K 105 Carburettors License copy of Solex Hispano 56SVC self adjusted carburettor three on each outboard side of cylinder banks Fuel type 94 minimum grade 95 or 100 octane rating gasoline 3 Cooling system Liquid cooled Reduction gear 1 0 666 1 0 591 for M 105R Performance Power output 1 100 hp 820 kW at 2 700 RPM for take off boost rated at 1 27 Atm 38 00 MP 1 050 hp 782 kW at 2 700 RPM at 13 123 ft 4 000 m boost rated at 1 21 Atm 36 22 MP 500 hp 372 kW at 2 700 RPM at 31 168 ft 9 500 m Specific power 23 36 kW L 0 513 hp in Compression ratio 7 0 1 Specific fuel consumption 328 g kW h 0 54 lb hp h Oil consumption 11 g kW h 0 28 oz hp h Power to weight ratio 1 42 kW kg 0 86 hp lb See also EditRelated development Hispano Suiza 12Z Klimov VK 103 Klimov VK 104 Klimov VK 106 Klimov VK 107Comparable engines Allison V 1710 Daimler Benz DB 601 Mikulin AM 35 Rolls Royce MerlinRelated lists List of aircraft enginesReferences EditNotes Edit Gunston 1989 p 90 Valtion Lentokonetehdas 1943 Hispano Suiza 12Y 31 M 103 M 105 Rakenneselostus Kaytto Ja Huoltoohjeet Valtion Lentokonetehdas State Aircraft Factory Hispano Suiza 12Y 31 M 103 M 105 Use and Maintenance Instructions Helsinki Maintenance and spare technical manual of the Finnish Government The National Library of Finland During the war the Soviet Air Force used fuel mixtures including automotive gasoline without troubles Bibliography Edit Gunston Bill 1989 World Encyclopedia of Aero Engines Cambridge England Patrick Stephens Limited ISBN 1 85260 163 9 Kotelnikov Vladimir 2005 Russian Piston Aero Engines Marlborough Wiltshire Crowood Press ISBN 1 86126 702 9 External links Edit Wikimedia Commons has media related to Klimov M 105 VK 105 on ram home com Retrieved from https en wikipedia org w index php title Klimov M 105 amp oldid 1109091713, wikipedia, wiki, book, books, library,
